...The wrap looks like the wrap on a stray 13" tom I bought a couple of years ago.
If the wrap is more like a kitchen counter top arborite/melamine than a plastic wrap, it is more than likely the real deal. Also, the stamped bass drum claws and the Gibralter style hex bass drum spur mounts, along with the hex shaped breather vents suggest as others have pointed out, these are the older keller shells. I am no dee dub historian by any means, but I did not see a date, or note stamp on the inside of the drums pictured, that also suggests that those are keller shelled dubs.
To put a value on them would be a tough call, as many dub lovers prefer the old Kellers to the newer in house shells. My personal feeling regarding the perceived sound difference has more to do with the age of the shells. When you find the kellers, they are already older, and more seasoned than the newer shells. The new shells will season and age in time. The longest that I ever owned a full DW kit was a little over five years, and within that short period of time, I did start to notice a change.
You do have a really nice kit there, and I am sure that you would not have any problem getting rid of them if you chose to do so. My advice would be to hang on to them as they will be the ones that hold their value when my kids generation turns into my generation.
Also, what parts do you need. PM me with a list as I have a tub full of odds and ends.
Barry